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![[HI98121] Hanna pH/ORP/Temperature Combo Tester (Discontinued) deficiency 4 Outlet air pump](https://cdn.shopify.com/s/files/1/0502/3340/9702/products/hi98121.jpg?v=1670473360)
![[HI98121] Hanna pH/ORP/Temperature Combo Tester (Discontinued) deficiency 4 Outlet air pump](https://cdn.shopify.com/s/files/1/0502/3340/9702/products/hi98121-combo-orp-probe.jpg?v=1670473360)
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4 Outlet air pump
further reducing fatigue during extended use
HDI Clonex Clone Solution is a nutrient specifically tailored for clones
the tents come with equipment bars to support lamps and carbon filters
[HI98121] Hanna pH/ORP/Temperature Combo Tester (Discontinued) deficiency 4 Outlet air pumpThe HI98121 is a lightweight ergonomically designed tester. This tester is designed to float making it ideal for taking readings virtually anywhere. With the HI98121 it is possible to monitor both pH and ORP at the same time. The HI98121 is commonly used to monitor pH and chlorine for many applications including swimming, food sanitization, plating wastewater treatment, and cooling tower water treatment. By definition pH is the measurement of the
